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/*
* Copyright (C) 2010-2016 Free Software Foundation, Inc.
* Copyright (C) 2015-2016 Red Hat, Inc.
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>
*
*/
#include "config.h"
#include "system.h"
#include "gnutls_int.h"
#include "errors.h"
#include <sys/socket.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#ifdef _WIN32
#include <windows.h>
#include <wincrypt.h>
#if defined(NEED_CERT_ENUM_CRLS)
CertEnumCRLsInStoreFunc pCertEnumCRLsInStore;
static HMODULE Crypt32_dll;
#endif
#endif
/* System specific function wrappers for certificate stores.
*/
gnutls_time_func gnutls_time;
gnutls_gettime_func gnutls_gettime;
/* emulate gnulib's gettime using gettimeofday to avoid linking to
* librt */
static void _gnutls_gettime(struct timespec *t)
{
#if defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_REALTIME)
clock_gettime(CLOCK_REALTIME, t);
#else
struct timeval tv;
gettimeofday(&tv, NULL);
t->tv_sec = tv.tv_sec;
t->tv_nsec = tv.tv_usec * 1000;
#endif
}
void _gnutls_global_set_gettime_function(gnutls_gettime_func gettime_func)
{
gnutls_gettime = gettime_func;
}
int gnutls_system_global_init(void)
{
#if defined(_WIN32) && defined(NEED_CERT_ENUM_CRLS)
/* used in system/certs.c */
HMODULE crypto;
crypto = LoadLibrary(TEXT("Crypt32.dll"));
if (crypto == NULL)
return GNUTLS_E_CRYPTO_INIT_FAILED;
pCertEnumCRLsInStore = (CertEnumCRLsInStoreFunc)GetProcAddress(
crypto, "CertEnumCRLsInStore");
if (pCertEnumCRLsInStore == NULL) {
FreeLibrary(crypto);
return GNUTLS_E_CRYPTO_INIT_FAILED;
}
Crypt32_dll = crypto;
#endif
gnutls_time = time;
gnutls_gettime = _gnutls_gettime;
return 0;
}
void gnutls_system_global_deinit(void)
{
#if defined(_WIN32) && defined(NEED_CERT_ENUM_CRLS)
FreeLibrary(Crypt32_dll);
#endif
gnutls_time = time;
gnutls_gettime = _gnutls_gettime;
}
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